10-Minute Workout: Boost Your Metabolism!

An Instant Kick

"Swift motions and jumps give your metabolism an instant kick while building muscle in the long term," says Jon Giswold, a master trainer at PUSH, an online personal-training service. Add this power-packed routine, developed by Giswold, to your regular workout three times a week — you'll burn more than 100 calories in each 10-minute session.

Single-Leg Squat

Minutes 0:00-2:00

Targets: Core, Quads, Glutes

Lift right leg off floor, bending knee 90 degrees, and place hands on hips.

Bend left knee, lowering into a squat.

Hold for 1 count, straighten leg, then repeat.

Do 1 minute per leg.

Crunch Ball Toss

Minutes 2:00-4:00

Targets: Abs, Chest, Shoulders, Triceps

Lie on back holding a medicine ball with both hands at chest level, knees bent.

Crunch up and toss the ball a few inches above you; freeze in that position until the ball falls back into your hands.